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유치원과 초등학교 저학년 교육환경 평가 척도 개발 예비연구
이영자,권영례,Harms, T . 한국초등교육학회 1998 초등교육연구 Vol.12 No.1
본 연구는 유치원과 초등학교 저학년의 교육환경을 평가하는 평정척도를 개발함으로써 교육의 질적 향상을 위한 준거를 마련하는데 그 목적을 두고 있다. 교육환경을 물리적 환경, 건강/영양/안전, 일과계획과 운영, 상호작용, 교육과정운영, 교직원 개발, 운영관리, 평가의 8개 하위영역으로 나누고 유치원과 초등학교 저학년 각각 172개 문항을 구성한 후 교육환경 평정척도로서 문항의 5점 척도에 의한 전문가의 평가로 항목 내용 타당도를 검토 후 각각 159문항, 162문항의 예비척도를 개발하였다. 교사들의 문항별 중요성 인식 정도 평가로 예비척도에 대한 신뢰도를 검증하였고, 이미 개발된 2개 척도와 비교하여 공인 타당도를 검증하였다. 그 결과 본 유치원·초등학교 환경평정척도는 내용 타당도, 신뢰도, 공인 타당도가 높은 도구임이 입증되었다. The purpose of this study was to develop an educational environment rating scales for kindergarten and lower grade levels of elementary school to provide a criteria for the quality of education. The educational environment scale includes eight sub-areas such as physical environment, health/nutrition/safety, schedule, interaction, curriculum, staff development, administration, evaluation and is composed of 172 items both for kindergarten and elementary school with five point rating scale in terms of importance as an evaluation criteria. The rating scale was administered to 43 early childhood and elementary school education experts and 82 teachers. The methods for data analysis were items means and standard deviations and t-test for content validity, Cronbach's Alphas and intraclass correlations for reliability and correlation's coefficiency with other scales for construct validity. Most items in 8 areas were rated as moderate to highly important(above 3.50). Cronbach's Alphas level were .70 or higher except three areas in kindergarten and each of the sub-areas showed moderate positive correlation's. The construct validity of the scale were r = .65 with the Educational Assessment Instrument of National Evaluation and r = .97 with the Instrument for Measuring Openness of Primary Education for Elementary school. Based on the pilot study, 159 items in kindergarten and 162 items in elementary school were selected for the educational environment rating scale for the following study.
Reed, M. D.,Harms, S. L.,Poindexter, S.,Zhou, A.‐,Y.,Eggen, J. R.,Morris, M. A.,Quint, A. C.,McDaniel, S.,Baran, A.,Dolez, N.,Kawaler, S. D.,Kurtz, D. W.,Moskalik, P.,Riddle, R.,Zola, S.,Østense Blackwell Publishing Ltd 2011 Monthly notices of the Royal Astronomical Society Vol.412 No.1
<P><B>ABSTRACT</B></P><P>KPD 1930+2752 is a short‐period pulsating subdwarf B (sdB) star. It is also an ellipsoidal variable with a known binary period of 2.3 h. The companion is most likely a white dwarf and the total mass of the system is close to the Chandresekhar limit. In this paper, we report the results of Whole Earth Telescope (WET) photometric observations during 2003 and a smaller multisite campaign of 2002. From 355 h of WET data, we detect 68 pulsation frequencies and suggest an additional 13 frequencies within a crowded and complex temporal spectrum between 3065 and 6343 μHz (periods between 326 and 157 s). We examine pulsation properties including phase and amplitude stability in an attempt to understand the nature of the pulsation mechanism. We examine a stochastic mechanism by comparing amplitude variations with simulated stochastic data. We also use the binary nature of KPD 1930+2752 for identifying pulsation modes via multiplet structure and a tidally induced pulsation geometry. Our results indicate a complicated pulsation structure that includes short‐period (≈16 h) amplitude variability, rotationally split modes, tidally induced modes and some pulsations which are geometrically limited on the sdB star.</P>
Joseph, Dickson,Bü,sselmann, Julian,Harms, Corinna,Henkensmeier, Dirk,Larsen, Mikkel Juul,Dyck, Alexander,Jang, Jong Hyun,Kim, Hyoung-Juhn,Nam, Suk Woo Elsevier 2016 Journal of membrane science Vol.520 No.-
<P><B>Abstract</B></P> <P>By varying the amount of porogene (<I>ortho</I>-dichlorobenzene, ODB), and optimization of the dispersion process, two types of solvent cast Nafion membranes with an equivalent weight of 1100g/mol sulfonic acid can be obtained reproducibly. One type is a dense membrane with a porous layer on one surface. The other membrane type shows a novel structure, consisting of small closed pores throughout the membrane and a single layer of large open pores on one side. In addition, some membranes showed a structural morphology between these two types, a membrane with a dense part and a porous part on top of each other. The latter membrane structure was not fully reproducible yet, but probably could be by carefully adjusting the formulation of the casting solution. Also the effect of the casting temperature on the morphology is shown. Fully porous membranes were characterized for their water permeability, ion conductivity, mechanical properties, their performance in the fuel cell and the hydrogen crossover. While the fully porous membranes are not expected to be part of a real fuel cell, we expect that the new morphologies will inspire applied research, e.g. in which the pores are filled with electrolyte or material or a catalyst is blended into the polymer.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Nafion membranes with three different morphologies were prepared. </LI> <LI> a) dense Nafion membranes with a porous surface, based on EW 1100. </LI> <LI> b) mixed dense/porous membranes. </LI> <LI> c) fully porous membranes with closed pores and larger open pores on the surface. </LI> <LI> Membranes were prepared in a single step (solution casting). </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Molecular Simulation for Adsorption of Chlorinated Hydrocarbon in Zeolites
Chihara, Kazuyuki,Mellot, Caroline F .,Cheetham, Anthony K .,Harms, Shani,Mangyo, Hirotaka,Omote, Masaki,Kamiyama, Ryuichi 한국화학공학회 2000 Korean Journal of Chemical Engineering Vol.17 No.6
Equilibrium and isosteric heat of adsorption for the system of chloroform and USY-type zeolite were studied. The USY-type zeolite (PQ Co., SiO₂/Al₂O₃=70) was used both as a pure crystalline powder and as granulated particles with binder. Chloroform was reagent grade. The adsorption equilibria were measured using a gravimetric method and were expressed as isotherms. A chromatographic method (i.e. pulse response of chloroform through the USY column with helium carrier) was used to get the initial slope of the isotherms. In the simulation, the GCMG method was used to calculate amounts adsorbed for various conditions. FF parameters were confidently applied. And modified structure model was effective for simulation.